学进去

It is Sunday today. ____ is a fine day. The sky is ___. Mrs. Green is having an outing (外出游玩) ____ his family. Tom is Mr. and Mrs. Green’s son. Mary is ____. They are ____ along (沿着) a small river. There are some boats ____ the river. Mr. and Mrs. Green are looking at ____. Mary is not looking at the boats. She is looking at some ducks. The ducks are ____ in the river (河). What is Tom ____? He is swimming in the river now. Mr. Green ____ his family are very happy today!